Siemens Sinamics G120 Series Parameter Manual page 168

Parameters
List of Parameters
p1489[0...2] Droop scaling / Droop scaling
Access level: 3
Quick comm. NO
Can be changed: U, T
Min
0.00
Description: Defines amount of droop in per unit at full load in [%].
Note: If 0 is entered as value, no droop is applied.
The Factory setting depends on inverter power.
r1490 CO: Droop frequency / Droop freq.
Access level: 3
Unit: [Hz]
Description: Displays output signal of droop function.
This result of droop calculation is subtracted from the speed controller setpoint.
p1492[0...2] BI: Enable droop / Enable droop
Access level: 3
Quick comm. NO
Can be changed: U, T
Min
-
Description: Enables droop.
Effective only if droop scaling P1489 > 0.
Dependency:
p1496[0...2] Scaling accel. precontrol / Scal acc. prectrl.
CU240E Access level: 3
Quick comm. NO
Can be changed: U, T
Min
0.0 [%]
Description: Enters scaling of acceleration in [%].
The response of setpoint changes for the speed control loop can be improved using the precontrol function
(P1496).
Precontrol is derived from the differential frequency setpoint multiplied by the mass inertia P0341; P0342 is then
supplied as a torque setpoint to the current controller.
If the filter (SLVC: P1452) is applied in the correct manner, the derived speed controller is only required to control a
small deviation in the value of the corrected variable.
Note: P1496 = 0: ==> Precontrol disabled
P1496 > 0: ==> Precontrol enabled
P1496 = 100: ==> Standard setting for precontrol
1-168
P-Group: Closed-loop control
Active: YES
Max
0.50
P-Group: Closed-loop control
P-Group: Closed-loop control
Active: NO
Max
-
P-Group: Closed-loop control
Active: YES
Max
400.0 [%]
© Siemens AG 2007 All Rights Reserved
SINAMICS G120 Control Units CU240S, Edition 05/2007
Data type: Floating Point
Data set: DDS
Factory setting
0.05
Data type: Floating Point
Data set: -
Data type: Unsigned32
Data set: CDS
Factory setting
0
Data type: Floating Point
Data set: DDS
Factory setting
0.0 [%]